Background. Four-hour "1lT redistribution images underestimate myocardial viability in patients with coronary artery disease (CAD). Because 4-hour defects often redistribute late, delayed imaging may enhance assessment of tissue viability. Myocardial metabolic activity was therefore assessed with positron emission tomography (PET) in 26 CAD patients with impaired ventricular function (ejection ...

The analytical approach used to develop a novel fatigue crack growth coupon for highly plastic stress field condition is presented in this paper. The flight hardware investigated is a large separation bolt that has a deep notch, which produces a large plastic zone at the notch root when highly loaded. Four test specimen configurations are analyzed in an attempt to match the elastic-plastic stre...

As semiconductor devices are scaled to sub-micron dimensions, they are becoming more complex in geometry and materials. Stress related problems are therefore pervasive and critical in ultralarge scale integrated technology. High levels of stress can cause severe degradation of device characteristics by generating and propagating dislocations in the silicon substrate. Furthermore, stress in the ...

UNLABELLED This study analyzed the incidence and clinical significance of reverse redistribution (RR) on stress-redistribution (201)Tl SPECT studies in patients with poor left ventricular function and tested the hypothesis that the RR phenomenon could be caused by artifacts. METHODS Seventy-three consecutive patients with chronic coronary artery disease and left ventricular dysfunction (eject...

BACKGROUND: Suitable and useful usage of different kind of fertilizers is the main way for reformation and potential of soil fertility and increasing of crops yield. Microelements are the critical elements for plants; also play the important role in crop productivity where it is used in low rate. Optimum plant nutrition and maximum yield is achieved when nutrient elements are a...

Thermomechanical stress generation on a silicon chip in an embedded-die package (EDP) was investigated. Change thermomechanical the with temperature evaluated using piezo-resistance gauges fabricated chip. To investigate impact of redistribution layer (RDL) generation, EDP where filling materials facing top and bottom sides periphery embedded die were entirely removed fabricated. The removal ca...

The aim of this study was to test the hypothesis that oxidative stress and glutamine synthetase (GS) redistribution occur in domoic acid (DA) toxicosis in California sea lions (CSLs, Zalophus californianus). Sections of archived hippocampi from seven control and 13 CSLs diagnosed with DA toxicosis were labelled immunohistochemically for GS and for two markers of oxidative stress, malondialdehyd...

We explore the implications of three basic and intuitive axioms for income redistribution problems: continuity, no transfer paradox stability. The combination characterizes in two-agent case a large family rules, which we call threshold rules. For each level total society, is considered agent. It impossible both agents to be below their respective thresholds. If an agent’s threshold, difference...